staging: brcm80211: remove CRC_INNER_LOOP macro

With the removal of hndcrc16 and hndcrc32 this macro is not needed
anymore. Also the crc-ccitt library functions provide an equivalent
static inline function for this operation.

Cc: devel@linuxdriverproject.org
Cc: linux-wireless@vger.kernel.org
Cc: Brett Rudley <brudley@broadcom.com>
Cc: Henry Ptasinski <henryp@broadcom.com>
Cc: Roland Vossen <rvossen@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>